/Engine/Source/Developer/TraceInsights/Public/Insights/ViewModels/GraphTrack.h
Update callback called each frame, but only if the track is visible. In this update, it is assumed the track position and the track size are valid.
virtual void Update ( const [ITimingTrackUpdateContext](API\Developer\TraceInsights\Insights\ViewModels\ITimingTrackUpdateContext) & Context )